MAX6420 MAXIM [Maxim Integrated Products], MAX6420 Datasheet
MAX6420
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MAX6420 Summary of contents
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... The MAX6415/MAX6416/MAX6417 are offered with an adjustable reset input that can monitor voltages down to 1.26V and the MAX6418/MAX6419/ MAX6420 are offered with one fixed input and one adjustable input to monitor dual-voltage systems. The MAX6412/MAX6415/MAX6418 have an active-low, push-pull reset output. The MAX6413/MAX6416/ ...
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Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay ABSOLUTE MAXIMUM RATINGS All Voltages Referenced to GND V ........................................................................-0.3V to +6.0V CC SRT, MR, RESET IN ....................................-0. RESET, RESET (Push-Pull) .........................-0. RESET (Open-Drain) .............................................-0.3V to ...
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Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay ELECTRICAL CHARACTERISTICS (continued 5.5V unless otherwise specified. Typical values are MIN MAX PARAMETER SYMBOL RESET Output ...
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Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay ( 1500pF +25°C, unless otherwise noted.) CC SRT A RESET TIMEOUT PERIOD vs. TEMPERATURE 4.30 4.25 4.20 4.15 4.10 4.05 -50 - ...
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... CC The reset output is typically connected to the reset input of a µP. A µP’s reset input starts or restarts the µ known state. The MAX6412–MAX6420 µP supervi- sory circuits provide the reset logic to prevent code- execution errors during power-up, power-down, and brownout conditions (see Typical Operating Circuit ). ...
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... Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay The MAX6415–MAX6420 monitor the voltage on RESET IN with an external resistor voltage-divider (Figure 1). Use the following formula to calculate the externally monitored voltage (V ): MON_TH (R1 + R2)/R2 MON_TH RST where V is the desired reset threshold voltage ...
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... Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay V MON_TH V CC 1.26V R1 RESET IN R2 GND SRT C SRT Figure 4. MAX6418/MAX6419/MAX6420 Monitoring Two Voltages monitor voltages other than V . Calculate V CC shown in the Reset Threshold section. (See Figure 3.) _______________________________________________________________________________________ V CC MAX6420 LASER-TRIMMED RESISTORS (RESET) RESET RESET ...
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... Interfacing to Other Voltages for Logic The open-drain outputs of the MAX6414/MAX6417/ MAX6420 can be used to interface to µPs with other logic levels. As shown in Figure 5, the open-drain out- put can be connected to voltages from 0 to 5.5V. This allows for easy logic compatibility to various micro- processors ...
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Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay falls below 1V, RESET/RESET current sink- When V CC ing (sourcing) capabilities decline drastically. In the case of the MAX6412, MAX6415, and MAX6418, high- impedance CMOS-logic inputs connected to RESET ...
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... MAX6417UK-T MAX6418UK16-T MAX6418UK22-T MAX6418UK26-T MAX6418UK29-T MAX6418UK46-T MAX6419UK16-T MAX6419UK22-T MAX6419UK26-T MAX6419UK29-T MAX6419UK46-T MAX6420UK16-T MAX6420UK22-T MAX6420UK26-T MAX6420UK29-T MAX6420UK46-T * Sample Stock is generally held on all standard versions. Contact factory for availability of nonstandard versions. 10 ______________________________________________________________________________________ TOP MARK ADVY ADWA ADWC ADWD ADWG ADWI ADWK ADWM ADWN ...
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... MANUAL PART V TH ✔ MAX6412 ✔ MAX6413 ✔ MAX6414 MAX6415 — MAX6416 — MAX6417 — ✔ MAX6418 ✔ MAX6419 ✔ MAX6420 Typical Operating Circuit V CC RESET/RESET MAX6412 MAX6413 MAX6414 MR GND SRT ______________________________________________________________________________________ PUSH-PULL RESET IN RESET RESET ✔ — ✔ — ✔ ...
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Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay REVISION REVISION NUMBER DATE 0 01/02 Initial release 1 8/03 Corrected top marks. 2 12/05 Added lead-free information in Ordering Information. 3 3/10 Deleted RESET in Hysteresis parameter in the ...